If you want, I can produce either: (A) a condensed project proposal for pitching to developers/publishers, (B) a sample technical spec with data structures and class diagrams for an Android Java implementation, or (C) a simplified game design document (GDD) focusing on mobile-friendly missions and levels. Which would you like?
The Java version usually offered between 8 and 12 missions. While the PC game had massive, open-ended levels, the mobile version split each level into smaller “zones.” For example: project igi game for java mobile version